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Three Smithsonian astronomers run a worldwide news service about what is happening overhead
The space agency crashed a satellite on the moon in a search for water. It wants to "shoot" a comet.
Light travels 186,000 miles per second in a vacuum; in Lene Hau's lab, it ambles at 38 miles an hour
As prices skyrocket, gonzo collectors are combing the globe for these celestial fragments—and riling researchers
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A cloud of spacecraft parts and debris envelops the earth. Keeping track of it takes the best we have
For everyday folks and presidents, too, the Naval Observatory is a fascinating place to study the stars
An intergalactic war is going on, but not the kind we used to read about in science fiction magazines
Bursts of gamma rays have been a mystery for 30 years; Now, with new satellites, we have some clues
Suddenly we find that lots of nearby stars have their own planets, even though so far we can "see" only the giants
If bacterial life did arise on an Earth-like early Mars, we should be able to find its fossil remains preserved in those red rocks
We seldom notice air, but there's more going on in that cubic foot of the ether in front of our faces than most of us would ever guess
While Comet Shoemaker-Levy 9 is history, space scientists are beginning to piece together the details of its pyrotechnic encounter with Jupiter last July
Page 37 of 37
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